CN109929291A - Selfreparing ultraviolet ray absorbing polymer coating - Google Patents

Selfreparing ultraviolet ray absorbing polymer coating Download PDF

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Publication number
CN109929291A
CN109929291A CN201811483641.1A CN201811483641A CN109929291A CN 109929291 A CN109929291 A CN 109929291A CN 201811483641 A CN201811483641 A CN 201811483641A CN 109929291 A CN109929291 A CN 109929291A
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China
Prior art keywords
selfreparing
precursor
initiator
self
healing polymers
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Pending
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CN201811483641.1A
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Chinese (zh)
Inventor
M·阿卜戴尔哈米德
戴放
A·M·戴利
M·蔡
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GM Global Technology Operations LLC
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GM Global Technology Operations LLC
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Publication of CN109929291A publication Critical patent/CN109929291A/en
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/32—Radiation-absorbing paints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
    • B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
    • B05D3/065—After-treatment
    • B05D3/067—Curing or cross-linking the coating
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/0427—Coating with only one layer of a composition containing a polymer binder
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
    • C08J2377/06—Polyamides derived from polyamines and polycarboxylic acids

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paints Or Removers (AREA)
  • Polymerisation Methods In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

The system and method for providing selfreparing UV protection polymer coating include the selfreparing part for being formed by polymer substrate by causing the polymerization of ultraviolet radiation absorption matrix precursor and uv initiator and being arranged in the polymer substrate.Polymer substrate includes several active sites therein.Selfreparing part includes flowable selfreparing precursor and selfreparing initiator.Selfreparing initiator is configured to polymerize selfreparing precursor using cationic ring opening process.

Description

Selfreparing ultraviolet ray absorbing polymer coating
Introduction
This disclosure relates to ultraviolet ray absorbing polymer coatings art, and relate more particularly to provide with self-healing properties Ultraviolet ray absorbing polymer coating system and method.
Fabric and component can be formed by UV sensitive material.If being exposed to ultraviolet radiation, material will be in physics Above and/or aesthetically degenerate.For example, physical degradation can reduce the intensity, soft for being formed by component by UV sensitive material Toughness or rigidity.Even if aesthetic degeneration (such as UV sensitive material brown stain) can also there is no perceptible physical degradation To reduce the ability implemented by UV sensitive material institute forming member, this is because consumer can be found that this color change It is undesirable.
Summary of the invention
The physical degradation of UV sensitive material and aesthetic degeneration reduce these materials and are used for fabric and component (specifically Structural element) expectation.Self-healing polymers disclosed herein may be embodied to the phase for improving UV sensitive material It hopes.
According to all aspects of this disclosure, a kind of method includes the binary that preparation includes matrix precursor part and selfreparing part Mixture, the polymerization by causing ultraviolet radiation absorption matrix precursor and uv initiator formed self-healing polymers coating with by This forms polymer substrate, and the outer surface of selfreparing sensibility substrate is protected with self-healing polymers coating.Selfreparing portion Divide includes flowable selfreparing precursor and selfreparing initiator.Matrix precursor part includes ultraviolet radiation absorption matrix precursor and purple Outside line initiator.Selfreparing part is substantially provided in entire polymer substrate.Polymer substrate includes several work therein Property site.
According to the another aspect of the disclosure, selfreparing precursor is cyclic ethers, and selfreparing initiator is lewis acid chemical combination Object.
According to the another aspect of the disclosure, ultraviolet radiation absorption matrix precursor is branched acrylate.
Binary mixture is coated to purple before forming self-healing polymers coating according to the another aspect of the disclosure Outside line sensibility substrate.
According to the another aspect of the disclosure, selfreparing precursor is with chemical formula CH2OC2H4The cyclic ethers of O, and selfreparing Initiator is bis- (fluorosulfonyl) acid imides of alkali metal.
According to the another aspect of the disclosure, ultraviolet radiation absorption matrix precursor is the branched acrylate with functional moiety, The group that the functional moiety selects free carboxylic acid and ester to constitute, and uv initiator is 1,1- diphenylmethanone.
According to the another aspect of the disclosure, formed self-healing polymers coating include binary mixture is coated to it is removable Backing, and protecting the outer surface of sensitivity to ultraviolet light substrate includes removing self-healing polymers coating simultaneously from removable backing And self-healing polymers coating is coated to the outer surface of sensitivity to ultraviolet light substrate.
According to the another aspect of the disclosure, sensitivity to ultraviolet light substrate includes para-aramid.
According to the another aspect of the disclosure, sensitivity to ultraviolet light substrate is pressurizing vessel.
According to the another aspect of the disclosure, this method further comprises in response in the polymer with selfreparing precursor thereof At least part of the selfreparing precursor filling fracture of fracture formed in matrix, and in response to contacting selfreparing initiator Selfreparing precursor make selfreparing precursor polymerize, from there through self-healing polymers coating inhibit fracture propagation.
According to the another aspect of the disclosure, selfreparing is based partially on the weight of binary mixture to be existed with the amount of 50 weight % In binary mixture, and matrix precursor is based partially on the weight of binary mixture with the amount of 50 weight % to be present in binary mixed It closes in object.
According to other various aspects of the disclosure, self-healing polymers coating includes by causing ultraviolet radiation absorption matrix precursor Polymerization be formed by polymer substrate, and polymer substrate includes uv initiator and the selfreparing portion that is disposed therein Point.Polymer substrate includes several active sites therein.Selfreparing part includes flowable selfreparing precursor and selfreparing Initiator.Selfreparing initiator is configured to polymerize selfreparing precursor using cationic ring opening process.
According to the another aspect of the disclosure, selfreparing precursor is cyclic ethers, and selfreparing initiator is lewis acid chemical combination Object.
According to the another aspect of the disclosure, ultraviolet radiation absorption matrix precursor is branched acrylate.
According to the another aspect of the disclosure, ultraviolet radiation absorption matrix precursor is the branched acrylate with functional moiety, The group that the functional moiety selects free carboxylic acid and ester to constitute, and uv initiator is 1,1- diphenylmethanone.
According to the another aspect of the disclosure, selfreparing precursor is with chemical formula CH2OC2H4The cyclic ethers of O, and selfreparing Initiator is bis- (fluorosulfonyl) acid imides of alkali metal.
According to the another aspect of the disclosure, selfreparing initiator is uv initiator.
According to the another aspect of the disclosure, selfreparing initiator is uv initiator.
According to the another aspect of the disclosure, selfreparing precursor is filled out in response to contacting with the fracture in self-healing polymers coating At least part of fracture is filled, and thus selfreparing precursor inhibits fracture in response to contacting polymerization with selfreparing initiator It propagates.
According to the another aspect of the disclosure, selfreparing precursor is cyclic ethers, and selfreparing initiator is lewis acid chemical combination Object.
When connection with figures consider when, to realize the disclosure best mode it is described in detail below in, the disclosure it is upper It states features and advantages and other features and advantages will be obvious.
Detailed description of the invention
These attached drawings are the illustrative themes for being not intended to limit and being defined by the claims.Illustrative aspect with Under detailed description in discuss and show in the accompanying drawings, in which:
Fig. 1 shows the exemplary process according to all aspects of this disclosure.
Specific embodiment
UV sensitive material (such as para-aramid) can degenerate in the presence of ultraviolet light.Advantageously, including such as Self-healing polymers coating described herein can by be reduced or avoided physical degradation and/or it is aesthetic degeneration come improve including The component of UV sensitive material can operation lifetime.Furthermore self-healing polymers disclosed herein can reduce manufacture Cost may include that ultraviolet-sensitive fiber is protected using shell.By avoiding metallic catalyst initiator (such as rare Metallic catalyst) cost, self-healing polymers can also provide the benefit of other self-repair materials.
Self-healing polymers disclosed herein may be embodied as the finishing coat of sensitivity to ultraviolet light substrate.For example, reviewing one's lessons by oneself Multiple polymer may be used as the finishing coat of pressurizing vessel, and the pressure rating of pressurizing vessel is maintained the longer time.Advantageously, because Self-healing polymers can inhibit pressure vessel volume change (undergone during the charging and discharging such as in pressure vessel that The finishing coat crack occurred during a bit), so self-healing polymers disclosed herein can improve the service life of finishing coat.
Further, self-healing polymers can be used for protecting clothes and protective device (such as based on the clothing of kevlar Clothes), wherein the use of clothes and protective device includes prolongedly being exposed to sunlight.Furthermore selfreparing disclosed herein is poly- The assessment of degeneration of property substrate sensitive to UV light can be provided in the case where not needing removal exterior layer by closing object, purple with exposure The view of outside line sensibility substrate.For example, end user can paint to component to cover the aesthetic degeneration of such as brown stain. However, this behavior mask the label of degeneration and can with fuzzy component under given grade close to its can operation lifetime it is whole The sign of point.
Furthermore in the less component of typical method and lower production cost degenerated than mitigating sensitivity to ultraviolet light substrate In the case where, self-healing polymers disclosed herein provide the protection of property substrate sensitive to UV light.Further, such as Self-healing polymers disclosed herein be in chemistry it is stable, to resist the weathering due to caused by air and moisture.
Advantageously, though self-healing polymers disclosed herein in the outside of self-healing polymers coating by example As can be also provided the protection of property substrate sensitive to UV light after scraping or wear-out failure.Be not carried out it is disclosed herein from In the system of rehabilitation polymer, such as compared with non-lapped face, this scraping or abrasion will provide the ultraviolet of increase at this point Line infiltration.Furthermore increase because the use with system is tended in this crack, ultraviolet light infiltration will be further with system Continue to use and increase.However, self-healing polymers are seeped by the ultraviolet light for inhibiting the propagation in crack to avoid this increase Thoroughly.In certain aspects, the selfreparing part of self-healing polymers also can inhibit ultraviolet light therein to penetrate.
Self-healing polymers are formed by binary mixture, the binary mixture include ultraviolet radiation absorption matrix precursor part and Selfreparing part.In certain aspects, selfreparing is based partially on the weight of binary mixture and is present in two with the amount of 50 weight % In first mixture, and matrix precursor is based partially on the weight of binary mixture and is present in binary mixture with the amount of 50 weight % In.
The configuration of ultraviolet radiation absorption matrix precursor part is shaped to polymer substrate, and which defines the knots of self-healing polymers Structure.Ultraviolet radiation absorption matrix precursor part includes matrix precursor and uv initiator.Matrix precursor configuration is shaped to polymer The polymer of matrix.In certain aspects, matrix precursor is branching precursor.In certain aspects, matrix precursor is with function Partial branched acrylate, the functional moiety have the group selected from carboxylic acid and ester.
Astoundingly, self-healing polymers coating (such as acrylate based polyalcohol) as disclosed herein can stand Ultraviolet radiation is inhibited to penetrate into sensitivity to ultraviolet light substrate.This, which is provided using ultraviolet radiation, causes self-healing polymeric The polymerization of object, while reducing the risk of sensitivity to ultraviolet light basal degeneration.
Further, branched acrylate as disclosed herein can be advantageously carried out into and three silicon of hexa-methylene ring Oxygen alkane, poly(ethylene glycol) methyl ether methacrylate and dimethyl silicone polymer form copolymer.Advantageously, such as institute herein Disclosed polymer substrate and ultraviolet absorbing agent or stabilizer component (such as 2- (2 ', 4 '-dimethylbenzoyl) benzoic acid And benzophenone) compatible.
Uv initiator is configured to be exposed to ultraviolet light and the polymerization that causes matrix.For example, ultraviolet light causes Agent can be 1,1- diphenylmethanone.Advantageously, it is poly- to provide the matrix that rapidly can cause or stop for uv initiator It closes.Furthermore because uv initiator can to re-emit the ultraviolet radiation of absorption compared with low energy (such as heat), The crosslinking and/or polymerization that ultraviolet light causes can further suppress ultraviolet radiation and penetrate into sensitivity to ultraviolet light substrate.It is ultraviolet Line initiator can be chosen such that the energy re-emitted lower than scheduled energy, such as makes sensitivity to ultraviolet light basal degeneration Required energy.
Selfreparing part includes selfreparing precursor and selfreparing initiator.Selfreparing is partially dispersed in self-healing polymers In, so that the fracture in self-healing polymers will contact selfreparing precursor and selfreparing initiator.Selfreparing precursor and selfreparing Initiator is chosen to inhibit to pass through the fracture of polymer substrate after the contact between self-healing precursor and selfreparing initiator Propagation.Selfreparing precursor and/or selfreparing initiator are maintained in the deposit in entire polymer substrate.In some respects In, microballoon or tubular structure of the deposit in the contained structure clearly limited, such as with relatively uniform size distribution.One In a little aspects, clearly limited because selfreparing precursor and/or selfreparing initiator are contained in be formed by by individual sealant Contained structure in, so foring the deposit of selfreparing precursor and/or selfreparing initiator.In certain aspects, because Selfreparing precursor and/or selfreparing initiator are unmixing in binary mixture, thus form selfreparing precursor and/or The deposit of selfreparing initiator.
When fracture is propagated by polymer substrate, fracture will contact selfreparing precursor.Selfreparing precursor is configured to flow Dynamic, so that in response to being contacted with the fracture in self-healing polymers, at least part of selfreparing precursor filling fracture.One In a little aspects, selfreparing precursor is configured to polymerize with the contact of selfreparing initiator, thus inhibits the propagation of fracture.? In some aspects, selfreparing initiator is uv initiator, and selfreparing precursor during being exposed to ultraviolet radiation or Later in response to polymerizeing with the contact of selfreparing initiator.In certain aspects, selfreparing initiator is for causing polymerization The uv initiator of object matrix polymerisations.
The distribution of selfreparing precursor and amount are chosen to inhibit fracture further than certain average distance in polymer substrate It propagates.For example, the increase load of selfreparing precursor, which reduces, to be broken before being broken the deposit for contacting selfreparing precursor The statistical distance that can be propagated by self-healing polymers.
In certain aspects, selfreparing part is substantially uniformly distributed in entire polymer substrate.In some respects In, selfreparing part is more heavily loaded towards one or more boundaries of polymer substrate.Particularly, selfreparing part can be with More heavily loaded towards the outer surface of the self-healing polymers coating of substrate (such as sensitivity to ultraviolet light substrate) distal end.Favorably Ground, this uneven distribution can inhibit the propagation of fracture from the boundary of self-healing polymers, while reducing inhibition fracture and passing Broadcast the total amount of required selfreparing part.
In certain aspects, selfreparing precursor be chosen to selfreparing precursor and polymer is formed by by it can be attached To the active site in polymer substrate.Advantageously, the reparation part such as with the active site for being not attached to polymer substrate It compares, this attachment can increase the intensity of selfreparing part and provide the bigger resistance for resisting farther propagation.
In certain aspects, selfreparing precursor is chosen to polymerize by cation ring-opening polymerization process.In some respects In, selfreparing precursor is the ring molecule that can polymerize.In certain aspects, selfreparing precursor is cyclic ethers.In some respects, certainly Repairing precursor is with chemical formula CH2OC2H4The cyclic ethers of O.
In certain aspects, selfreparing initiator is the lewis acid compound for causing ring-opening polymerisation.In certain aspects, Selfreparing initiator is flowable, so that when being contacted with fracture, at least part of selfreparing initiator filling fracture.Have Sharp ground, flowable selfreparing initiator can increase rate of polymerization by mixing with the increase of selfreparing precursor.Some In aspect, selfreparing initiator is alkali metal imide compound.In certain aspects, selfreparing initiator is that alkali metal is double (fluorosulfonyl) acid imide.
Referring now to the figure, it is shown that provide the method 100 of self-healing polymers.Method 100 includes that preparation 102 includes purple The binary mixture of outside line absorption base precursor portions and selfreparing part, by the polymerization for causing matrix and uv initiator 104 self-healing polymers are formed, and protect the appearance of the 106 sensitivity to ultraviolet light substrates with self-healing polymers coating Face.
Selfreparing part includes flowable selfreparing precursor and selfreparing initiator.Ultraviolet radiation absorption matrix precursor part Including matrix precursor and uv initiator.The polymerization for causing matrix and uv initiator, is consequently formed polymer substrate.From Part is repaired to be substantially dispersed in entire polymer substrate.In certain aspects, polymer substrate includes the number for polymerization A active site.
In certain aspects, binary mixture passes through in the solution by ultraviolet radiation absorption matrix precursor part and selfreparing portion Divide and is mixed together to prepare.In certain aspects, before the solidification for causing ultraviolet radiation absorption matrix precursor part, immediately will Selfreparing part is added to ultraviolet radiation absorption matrix precursor part to inhibit the polymerization of selfreparing precursor.In certain aspects, exist Before the solidification for causing ultraviolet radiation absorption matrix precursor part, by ultraviolet radiation absorption matrix precursor part and selfreparing precursor and certainly It repairs one of initiator to mix, while another selfreparing precursor and selfreparing initiator is added to mixing immediately Object, to inhibit the polymerization of selfreparing precursor.In certain aspects, before forming self-healing polymers coating, by two end number mixing Object is coated to sensitivity to ultraviolet light substrate.
In certain aspects, before causing matrix polymerisations, binary mixture is coated to removable backing.In ultraviolet light The polymerization of absorption base precursor has progressed to after predetermined extent, and self-healing polymers are freestanding and can not have Operable in the case where damage, removable backing can be separated from self-healing polymers.It then, can be by self-healing polymeric Object is placed in sensitivity to ultraviolet light substrate.The placement of self-healing polymers can be by making self-healing polymers and ultraviolet-sensitive Property substrate it is adjacent or adherency is to realize.
For the purpose of this detailed description, odd number includes plural number and vice versa (unless specifically stated otherwise)；Word "and" and "or" should be internuncial and separation property the two；Word " all " means " any and all "；It is single Word " any " means " any and all "；And word " comprising " is meant " including but not limited to ".In addition, singular Term " one ", "one" and "the" include plural referents, unless the context clearly.

Claims (10)

1. a kind of method comprising:
Preparation include matrix precursor part and selfreparing part binary mixture, the selfreparing part include it is flowable from It repairs precursor and selfreparing initiator, the matrix precursor part includes ultraviolet radiation absorption matrix precursor and uv initiator；
Polymerization by causing ultraviolet radiation absorption matrix precursor and uv initiator forms self-healing polymers coating, thus shape At polymer substrate, the selfreparing part is substantially provided in the entire polymer substrate, the polymer substrate packet Include several active sites therein；And
With the outer surface of self-healing polymers coating protection sensitivity to ultraviolet light substrate.
2. according to the method described in claim 1, wherein the selfreparing precursor is cyclic ethers and the selfreparing initiator is Lewis acid compound.
3. according to the method described in claim 1, wherein the binary is mixed before forming the self-healing polymers coating It closes object and is coated to the sensitivity to ultraviolet light substrate.
4. according to the method described in claim 1, wherein the selfreparing precursor is with chemical formula CH2OC2H4The cyclic ethers of O, and And the selfreparing initiator is bis- (fluorosulfonyl) acid imides of alkali metal.
5. according to the method described in claim 1, wherein forming the self-healing polymers coating includes by the two end number mixing Object is coated to removable backing, and wherein protecting the outer surface of the sensitivity to ultraviolet light substrate includes from described removable It is quick except removing the self-healing polymers coating in backing and the self-healing polymers coating being coated to the ultraviolet light The outer surface of perceptual substrate.
6. according to the method described in claim 1, further comprising:
In response to the fracture formed in the polymer substrate for contacting the selfreparing precursor, with the selfreparing precursor Fill at least part of the fracture；And
In response to contacting the selfreparing precursor of the selfreparing initiator, it polymerize the selfreparing precursor, thus inhibits Pass through the propagation of the fracture of the self-healing polymers coating.
7. a kind of self-healing polymers coating comprising:
Polymerization by causing ultraviolet radiation absorption matrix precursor and uv initiator is formed by polymer substrate, the polymerization Object matrix includes several active sites therein；And
Selfreparing part in the polymer substrate is set, the selfreparing part include flowable selfreparing precursor and Selfreparing initiator, the selfreparing initiator are configured to polymerize the selfreparing precursor using cationic ring opening process.
8. self-healing polymers coating according to claim 7, wherein the ultraviolet radiation absorption matrix precursor is with official The branched acrylate of energy part, the group that the functional moiety selects free carboxylic acid and ester to constitute, and the uv initiator It is 1,1- diphenylmethanone.
9. self-healing polymers coating according to claim 7, wherein the selfreparing precursor is with chemical formula CH2OC2H4The cyclic ethers of O, and the selfreparing initiator is bis- (fluorosulfonyl) acid imides of alkali metal.
10. self-healing polymers coating according to claim 7, wherein the selfreparing precursor with described in response to reviewing one's lessons by oneself At least part of the fracture is filled in fracture contact in multiple polymer coating, and the selfreparing precursor in response to institute The contact polymerization of selfreparing initiator is stated, the propagation of the fracture is thus inhibited.
CN201811483641.1A 2017-12-18 2018-12-05 Selfreparing ultraviolet ray absorbing polymer coating Pending CN109929291A (en)

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US15/845,402 US11084947B2 (en) 2017-12-18 2017-12-18 Self-healing, UV-absorbing polymer coating
US15/845402 2017-12-18

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DE102019009047B4 (en) * 2019-12-23 2020-12-03 Daimler Ag Procedure for correcting surface damage
WO2024173673A1 (en) * 2023-02-16 2024-08-22 The Regents Of The University Of Michigan Self-healing photochromic elastomer compositions for wearable ultraviolet-sensors

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US11084947B2 (en) 2021-08-10

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Application publication date: 20190625